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J. Conserv. Sci > Volume 35(6); 2019 > Article
Journal of Conservation Science 2019;35(6):681-688.
DOI: https://doi.org/10.12654/JCS.2019.35.6.11    Published online December 31, 2019.
목공예용 천연 및 합성 접착제의 특성 연구
김성은1, 이진경2, 이채훈1, 정용재1
1한국전통문화대학교 문화유산전문대학원 문화재수리기술학과
2한국전통문화대학교 문화재보존과학과
Study on the Physical Properties and Characteristics of Adhesives for Woodcraft
Seong Eun Kim1, Jin Kyung Lee2, Chae Hoon Lee1, Yong Jae Chung1
1Department of Heritage Conservation & Restoration, Graduate School of Cultural Heritage, Korea National University of Cultural Heritage, Buyeo 33115, Korea
2Department of Heritage Conservation Science, Korea National University of Cultural Heritage, Buyeo 33115, Korea
Correspondence:  Yong Jae Chung, Tel: +82-41-830-7365, 
Email: iamchung@nuch.ar.kr
Received: 31 October 2019   • Revised: 29 November 2019   • Accepted: 8 December 2019
초 록
본 연구에서는 목공예품에 사용되는 천연 및 합성 접착제의 특성을 평가하고, 온습도 변화에 따른 접착제와 목재의 열화 양상을 비교하였다. 아교 1종, 폴리초산비닐계 접착제 3종, 에폭시계 접착제 1종와 느티나무 목재를 선정하여 물리적, 화학적 특성평가와 내후성, 건조속도 평가를 진행하였다. 접착제 특성평가를 통해 아교와 폴리초산비닐계 1종의 접착강도가 각각 6.54 N/mm²과 7.01 N/mm²으로 나타났으며, 아교는 pH 7.03, 폴리초산비닐계 접착제는 pH 3.32∼3.59으로 접착제로써 사용가능한 범위인 것으로 확인되었다. 내후성 실험결과 에폭시계 접착제는 열화 후 접착강도 감소폭이 가장 높았다. 접착제에 대한 가역성 실험을 통해 에폭시를 제외하고 수용성용매인 NaOH에서 가역성이 높은 것으로 나왔으나 처리 시 목재에 변색이 나타날 수 있으므로 사용 시 주의가 필요하다.
중심어: 목공예, 아교, 합성접착제, 목재, 열화안정성, 가역성
In this study, the characteristics of natural and synthetic adhesives used in woodcraft were evaluated. The pattern of deterioration of wood and adhesives according to changes in temperature and humidity were compared. For materials, one type of anlmal glue, three kinds of polyvinyl acetate adhesives, one type of epoxy adhesive and one type of zelkova wood were selected. Characteristics of physical and chemical characteristics, weather resistance and drying speed assessment were carried out. The adhesion characteristic evaluation showed that the adhesion strength of anlmal glue and one type of polyvinyl acetate adhesive were 6.54 N/mm2 and 7.01 N/mm2, pH meter of anlmal glue and polyvinyl acetate adhesives was pH 7.03 and pH 3.32-3.59 which were range of available as an adhesive. According to the test results of weather resistance, epoxy adhesives had the highest decreasing value in adhesion strength after deterioration. In the reversible test of the adhesive, it was found to be highly reversible in NaOH, a soluble solvent excluding epoxy, but attention is required when using the wood since it may show discoloration during processing.
Key Words: Woodcraft, Animal glue, Synthetic adhesive, Wood, Deterioration stability, Reversibility

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